Which do you think was the biggest cause of the war- the Munich Agreement or Hitler's invasion of Czechoslovakia?

Both The Munich agreement and Hitler's invasion of Czechoslovakia were important fact of cause factors of the World War II. Because these things actually made Hitler ready for World War II and Chamberlain decide to declare war on Germany., sSo it's difficult to choose which one is the biggest cause of the war. The Munich agreement which Britain giving Hitler Sudetenland was the important affair which caused of World War II because it made other …

…for yourself! The one which declared war was not Germany, it was but Britain. If there was no Hitler's invasion of Czechoslovakia, probably, there would not happen World War II but there would happen small fights. In fact, Hitler didn't mean to arise World War II, he wasn't ready for war yet. But because of invasion of Czechoslovakia, Britain declared war on Germany and he who didn't have other alternative started war with other countries.